U.S. officials are issuing a worldwide caution alert after Trump ordered an attack on Iranian nuclear sites on Saturday. See the travel advisories.

The U.S. State Department issued a worldwide travel advisory earlier this week urging Americans to use caution when traveling abroad. The “Worldwide Caution” alert, issued on Sunday, came one day after the U.S. attacked nuclear sites in Iran.

The U.S. State Department has issued a global travel advisory for U.S. citizens amid the conflict between Israel and Iran, and the recent developments between the U.S and Iran . The advisory warns of potential disruptions to travel and regional airspace closures.